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•Arc Spray Equipment
•Solutions
Arc spray solutions
Praxair Surface Technologies, Inc. is a world leader in
thermal spray equipment and materials and in coatings
technology. Our focus is on providing the right coatings
solutions for any application. As a primary contributor
to the development and commercialization of the arc
spray process, Praxair continues to lead in advancing
the technology. Arc spray is at the core of what we do
everyday, and we provide a complete family of products
that reflects years of application knowledge combined
with our history of equipment engineering and coatings
expertise.
As with any process, the selection of arc spray
equipment is only the first step. At Praxair we believe
that the development of arc spray wires, in addition to
focusing on application technology, pushes the thermal
spray process toward expansion into new areas of
surface-enhancement solutions. We have dedicated
teams of engineers to work with you to develop
solutions that expand the market for cost-effective
thermal spray applications. Let us work with you to
select the best arc spray system and then help you
maximize your output and returns.
For more information, please contact your local
representative or contact our U.S. equipment
headquarters:
Phone:
1-603-223-2100
Fax:
1-603-225-4342
E-mail:
[email protected]
www.praxairsurfacetechnologies.com
The arc spray process is
used in multiple industries
for many demanding
applications including some
in the aerospace industry.
A long history
of proven success
Proven
The arc spray process is at the
very core of Praxair Surface
Technologies’ broad line of thermal
spray equipment. This is because
of Praxair’s historic development
and pioneering of applications
focused on the arc spray process
and our commitment to equipment
design and commercialization. We
provide a complete family of arc
spray products, each using tailored
technologies for various coating
solutions. The range stretches from
“push” to “pull” to our exclusive
TAFAGlide wire-feed technologies
and to innovative process
enhancements like Internal Diameter
(ID) spray extension and the ArcJet®
spray attachment. In addition, we
offer a variety of configurations that
will support the most demanding
applications.
The 9935 is a robust,
machine mounted or
hand-held gun combining
the proven, rugged wire
drive of the 8835, a
reliable DC servo motor,
the high volume air flow
capability of the 9000 with
a built-in ArcJet design to
truly make the 9935 the
state-of-the-art arc spray
gun.
Arc spray models
8830MHU
A true classic of the arc spray line
which features an air-driven “pull”
350-amp gun and a simple to use
control that has modular unbundled
capability. The 8830MHU has
become a proven economical and
reliable standard of excellence with
thousands of applications worldwide.
8835MHU
Adaptable to any spray environment,
the 8835MHU features an electric
motor “pull” 350-amp gun and
modular unbundled control
technology. The PLC-based controls
can be used in either automatic or
manual mode, and the gun is flexible
enough to be handheld or robotically
mounted.
BP400
A versatile robust option, the BP400
features a lightweight point-andshoot gun utilizing “push” wire
feed technology. Designed with
a 400-amp output, the system
provides both application and
production flexibility with superior
coating results.
CoArc™ system
For aerospace or high end OEM
application needs, the 9910i CoArc
system features the 9935 or the
smaller light weight 9985 gun with
improved hardware. Both guns
are 350-amp rated with “pull”
wire drives combined with the
TAFAGlide™ Wire Delivery System.
Designed with a variety of “stateof-the-art” features and options, it
revolutionizes arc spraying using
sophisticated control technology to
close-loop the spray process.
Versatility
Robust spray
system
Our engineering team
integrates thermal spray
automation, such as this
robot-mounted multiple
gun arc spray configuration
developed for a large
automotive OEM.
Praxair has modeled equipment
strategies around reliability and
versatility in use, operation and
application. The arc spray process
itself provides the best combination of
reliability and versatility of all thermal
spray processes, and the 8830MHU
and 8835MHU have a reputation
for great performance and reliable
operation in thousands of applications
through the years. The guns are
designed to perform with minimum
operator adjustment, assuring quality
coatings time and time again. Process
set-up includes only loading wire,
setting the voltage and air pressure,
and pushing the “On” button. No other
adjustments are needed.
The 8835MHU offers the same
properties as the 8830MHU, but with
electric motor drive and PLC-based
controls. Both can be unbundled - the
console and the wire feed cart can be
separated from the power supply to
add more range of use. The 8835’s
PLC-based controls are designed for
hand or robotic operation and provide
consistently repeatable coatings
through a multitude of application and
control options.
8830 and 8835 features
• “Pull” wire feed design utilizing either an air drive (8830) or electric drive (8835) with:
- Optimum energy transfer tip/
tube assembly
- Error-proof alignment housing
- Permanent arc shield protection
• Double yoke wire feed unit
• 400-amp 100% duty cycle power supply
The “pull” design of the
8830 and 8835 guns
allows for consistent
wire feeding and
repeatable coatings.
Dependable
and consistent
Reliability
Designed with reliability, robustness
and flexibility in mind, the BP400
can handle a variety of applications
without compromising coating
quality. Lightweight, portable and
easy to use, the BP400 offers onetouch, point-and-shoot operation.
Based on a robustly engineered
“push” wire delivery system, the
BP400 virtually eliminates drive
mechanism maintenance. This leads
to lightweight gun design, fewer
worries, and reliable operation.
BP400 features
• “Push” wire feed design
• Lightweight gun with no moving parts
• Synchronous dual wire feeding
• 400-amp 100% duty cycle power supply
• Handheld or machine mounted
Simple to operate yet
robust, the BP400 arc
spray system produces
high-quality metallic
coatings.
The 9935 CoArc incorporates
the ultra-low resistance
TAFAGlide™ Wire Delivery
System which eliminates the
need to use an expensive
push-pull wire feed system.
Offering all the benefits of the
other arc spray models plus much
more, the 9935 gun when used
with the CoArc™ control system
provides versatility, modularity, and
robustness. Advanced controls
gives the CoArc system the ultimate
in flexibility and ease-of-use. The
CoArc system utilizes the TAFAGlide
Wire Delivery System which, when
combined with closed-loop control
of gun head’s voltage and air
pressure, truly revolutionizes the arc
spray process to ensure consistent
reproducible coating quality.
CoArc system features
• Touch-screen operator interface
• Closed-loop control of spray head
voltage and air pressure
• Recipe storage
• TAFAGlide Wire Delivery System
• Simple, modular design
• 400 amp 100% duty cycle power supply
The CoArc system is
designed for automated
spraying yet offers
optional hand spraying
capability. The 9935 gun
incorporates a high-flow
air design that, when
combined with the closedloop control feature,
ensures consistent,
reproducible coating
quality.
Equipment Solutions
Arc spray solutions for
excellent coatings
8830MHU
8835MHU
A proven, reliable and economical arc spray
classic
An easy-to-operate, robust arc spray system
designed for maximum application flexibility
Features:
Features:
“Pull” wire feed design
“Pull” wire feed design
Air motor driven
Electric motor driven
1.6 mm or 2 mm wire feed capability
1.6 mm or 2 mm wire feed capability
Robust construction
PLC controlled
Rated for operation up to 350 amps
Built-in E-stop interface
Designed for handheld operations
Rated for operation up to 350 amps
CE, UL and 3C certified
Designed for automated operations
CE, UL and 3C certified
8830MHU system components and options
8835MHU system components and options
400-amp power supply
400-amp power supply
8830MHU control console
8835MHU control console
Modular, unbundled construction
8835 gun
Optional ArcJet® attachment
Built with ArcJet® attachment
Optional anti-skid retrofit kit
Modular, unbundled construction
Optional ID extension for straight-ahead or angled
spray
Optional anti-skid retrofit kit
Optional fan spray air cap
Optional ID extension for straight-ahead or angled
spray
Optional robot gun mount
8830MHU system
8835MHU system
BP400
CoArc™
Simple, lightweight, and durable arc spray system
with a proven track record
High-tech, modular arc spray system with
advanced control features for reproducible and
exceptional coating quality
Features:
Features:
“Push” wire feed design
“Pull” wire feed design
1.6 mm and 2 mm wire feed capability
1.6 mm and 2 mm wire feed capability
Rated for operation up to 400 amps
PLC controlled
Simple construction
Rated for operation up to 400 amps
Designed for handheld or machine-mounted
operation
“Touch-screen” operator interface
CE, UL and 3C certified
Closed-loop control of voltage and air pressure
CE, UL, and 3C certified
BP400 system components and options
CoArc system components and options
400-amp power supply
400-amp power supply
PF400R control console with robust push drive
9910i CoArc control console
BP400 gun
9935 or 9985 guns
Optional high-velocity conversion kit
Recipe storage
Optional fan spray conversion kit
Maintenance scheduling
Optional 2.3 mm or 3.2 mm conversion kits
TAFAGlide Wire Delivery System
Optional ID extension for straight-ahead or angled
spray
Optional closed-loop control of head voltage and
spray pressure
Optional wire counter / ”out” indicator
Optional data acquisition capability
Optional remote OIT
BP400 system
CoArc system
Broad spectrum of wire
applications
Diversity
Proud of our role in the emergence
and growth of the arc spray process,
we continue to develop and refine not
only equipment and consumables but
also arc spray applications. Arc spray
coatings are becoming more and more
accepted in applications around the
world due to the quality, low cost, ease
of use, and repeatability of the process.
Aircraft component repair
Most major aircraft engine
manufacturers specify the use of
the arc spray process for repairs of
many aircraft engine components.
Coatings are applied to various
components for dimensional
restoration, high temperature
erosion resistance, and as bond
coats.
Praxair has worked closely with
industry to develop arc spray solutions
for some of the most demanding
coating applications. While most arc
spray coatings still utilize metallic
alloy compositions, the advent and
growth of engineered, composite
cored wires broadens the use of arc
spray technology. For coatings ranging
from simple dimensional restoration,
to engineered solutions for complex
surface treatment requirements, arc
spray provides competitive, high quality
answers to problems.
Wear resistance
Cored wire technology has
broadened the spectrum of arc
spray applications. With a tailored
chemistry of cored wires, including
carbide-bearing compositions, it is
possible to produce coatings with
excellent sliding wear resistance as
well as abrasion resistance.
Corrosion protection
Arc sprayed coatings are used widely
to fight both high and low temperature
corrosion. These coatings have
proven their excellence in challenging
environments such as boilers, by
providing oxidation and heat resistance.
Arc sprayed coatings also provide
excellent resistance to atmospheric
corrosion and are used on bridges and
other infrastructural components.
Coatings that
deliver every time
Consistency
Electrical conductivity and
resistivity
Arc sprayed aluminum, tin, zinc
and other materials are used in
applications requiring good electrical
conductivity. Aluminum coating on
metal oxide varistors, for example,
creates an electrical conductivity
contact surface on the face of the
varistor.
Inside diameter spraying
One of the key advantages of TAFAbrand arc spray equipment is the
ability to adapt any of the guns
for reclamation, wear or corrosion
protection of inside diameters.
Part restoration
The forgiving nature and flexibility
of the arc spray process enables
economical application of thick
coatings without significant loss to
bond strengths. For this reason,
arc spray has become the process
of choice for part restoration in
applications where the replacement
costs are high or the part has to be
refurbished on-site.
Heavy equipment
The heavy equipment industry
uses arc spray to restore worn
components as well as new
component surface defects.
Application of the coatings can
occur at OEM manufacture sites or
at after-market repair facilities.
Arc sprayed coatings are
used for both electrical
conductivity and resistivity.
In the electronics industry,
coatings such as tin are
often used on nonmetallic
parts because of their ability
to accept solders.
Advanced options for
elevated performance
Innovation
Praxair is committed to the
development and advancement
of arc spray equipment and
applications. The innovation of
technology such as the ArcJet®
spray attachment, ID extensions
and TAFAGlide Wire Delivery
System has continued to drive the
process forward.
Other advantages that the ArcJet
attachment has over conventional
arc spray configurations include:
• Higher deposition efficiency
• Higher particle velocities
• Denser coating
• Focused, narrow spray pattern
• Superior bond strength
• Smoother as-sprayed coating
• More uniform microstructure
The ArcJet attachment is a
revolutionary, patented technology
that has allowed the arc spray
process to rival the coating quality
of higher-end processes like plasma
spray. The ArcJet attachment
increases particle velocities
and concentrates the spray
pattern to produce dramatically
improved coating quality. Coatings
are similar to plasma-sprayed
coatings; however, with the ArcJet
attachment, these plasma-like
coatings can be produced in much
less time and at a fraction of the
cost.
For years, the arc spray process has
been limited in its ability to reach
internal diameters. The development
of ID arc spray extensions has been
a major leap in improving process
technology. Optional ID extensions,
which are easily adapted to existing
guns, are available in both straightahead and angle configurations
and come in a variety of lengths.
In addition, highly engineered
nozzles, tips and positioners have
been designed for applications that
demand maximum durability.
Standard spray pattern
ArcJet spray pattern
A key aspect of any robust arc spray
process is consistent, trouble free
wire feeding. Wire feed interruptions
can have adverse effects on
amperage and voltage stability,
causing inconsistent coating quality,
costly interruptions of spray jobs,
and even part rework. Traditional
arc spray systems employ steel or
polymer lined wire transfer conduits
which may cause excessive drag,
friction and debris creation and
should be kept as straight as
possible to minimize wire feed
interruptions. Utilizing an innovative
and exclusive internal design, the
TAFAGlide Wire Delivery System
eliminates costly interruptions
and increases coating quality
and repeatability by reducing arc
amperage and voltage fluctuations.
TAFAGlides also eliminate the need
for a costly and complicated wire
“push drive” device typically used
to reduce amperage and voltage
fluctuations.
Exceptional wires for
superior coatings
Superior
Whether your application calls for
a reliable bond coat, dimensional
restoration, or resistance to wear
and corrosion. Praxair has a wire to
meet the challenge. All Praxair wires
are engineered and manufactured
exclusively for the specialized needs
of thermal spray. Strict specifications
and production controls are utilized so
that each wire is manufactured to a
precise metallurgical composition and
is free from defects such as slivers or
contaminants. Care is also taken to
ensure that our wires have the
proper physical properties for thermal
spraying – tensile strength, hardness
and surface finish – and that they
are properly spooled for reliable
performance.
When you search for the right
thermal spray wire, remember the
company that built its reputation on
arc spray technology; Praxair Surface
Technologies. Let us work with you to
continue to develop and perfect quality
arc spray wires and coatings.
Quality thermal spray
wires must be made
to tight compositional
tolerances, have the
appropriate surface finish,
and be spooled properly for
consistent performance.
An extensive inventory of
wires, available in 25 or
30-pound spools as well as
bulk pay-off packs, assures
prompt delivery and reinforces
our commitment to the growth
and development of arc spray
applications.
© Copyright 2015 Praxair Technology, Inc.
All rights reserved.
Praxair Surface Technologies, Inc.
1555 Main Street
Indianapolis, IN 46224
USA
TAFA Incorporated
146 Pembroke Road
Concord, NH 03301
USA
www.praxairsurfacetechnologies.com
[email protected]
Telephone:
(317) 240-2650
Telephone:
(603) 224-9585
Fax:
(317) 240-2596
Fax:
(603) 225-4342
Praxair Surface Technologies GmbH
Am Muhlbach 13
D-87487 Wiggensbach
Germany
Praxair is committed to continuous
product improvement. Specifications,
appearances, and dimensions are
subject to change without notice.
Telephone:
+49-(0) 8370-9207-0
TAFA Incorporated is a Praxair Surface
Technologies company.
Fax:
+49-(0) 8370-9207-20
All product photographs are not to scale
and should be used for information only.
Photos might not represent the latest
product revision and should not be used
for comparison purposes.
www.praxairsurfacetechnologies.com
[email protected]
Praxair and the Flowing Airstream design
are trademarks or registered trademarks
of Praxair Technology, Inc., and TAFA,
TAFA with Flame design, CoArc, ArcJet
are trademarks or registered trademarks of
Praxair S.T. Technology, Inc., in the United
States and/or other countries.
Other trademarks used herein are
trademarks or registered trademarks of their
respective owners.
The information contained herein is offered
for use by technically qualified personnel at
their discretion and risk without warranty of
any kind.
Printed in the United States of America
05-2015